121210212201201 has 16 divisors (see below), whose sum is σ = 179734377297600. Its totient is φ = 80733146484384.

The previous prime is 121210212201187. The next prime is 121210212201241. The reversal of 121210212201201 is 102102212012121.

121210212201201 is a `hidden beast` number, since 1 + 21 + 210 + 212 + 20 + 1 + 201 = 666.

It is not a de Polignac number, because 121210212201201 - 2¹⁸ = 121210211939057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121210212201241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2046126771 + ... + 2046186008.

It is an arithmetic number, because the mean of its divisors is an integer number (11233398581100).

Almost surely, 2^{121210212201201} is an apocalyptic number.

It is an amenable number.

121210212201201 is a deficient number, since it is larger than the sum of its proper divisors (58524165096399).

121210212201201 is a wasteful number, since it uses less digits than its factorization.

121210212201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092313885 (or 4092313879 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121210212201201 its reverse (102102212012121), we get a palindrome (223312424213322).

The spelling of 121210212201201 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twelve million, two hundred one thousand, two hundred one".